Add the following to the petz.conf file in the petz modpack

Add unicorn to the petz_list on line 4.

##Unicorn Specific --Change these as you see fit.
unicorn_follow = unicorn:apple
unicorn_spawn_chance = 0.6
unicorn_spawn_nodes = default:dirt_with_grass
unicorn_spawn_biome = default
unicorn_spawn_herd = 5
